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Nov. 18, 19 1,516.063

F. A. SCAMMELL SAIL Filed Dec. 14 1923 Patented Nov. 18, 1924.

UNITED STATES FREDERICK A. SCAliIIlEELL, E JOHNSTOWN, PENNSYLVANIA.

SAIL.

Application filed December 14, 1923. Serial No. 680,576.

To aZZ whom it wary concern:

Be it known that I, Fnnonnron A. SCAM- in-inn, a citizen of the UnitedStates, residing at Johnstown, county or Cambria, State of Pennsylvania,have invented a nev and useful Improvement in Sails, of which thefollowing is a full, clear, and exact description.

The present invention relates to sails and an object thereof is toprovide a construction of sail whereby the spilling of the dead wind maybe readily accomplished.

A further object of the invention is to provide a construction of sailfacilitating shortening thereof.

In the accompanying drawings, there is shown, for purposes ofillustration only, one embodiment 01'' my invention, it being understoodthat the drawings do not define the limits of the invention, as changesmay be made in the construction and operation therein disclosed withoutdeparting from the spirit of the invention or scope of my broaderclaims.

In the drawings:

Figure l is a side elevation of a boat pro vided with a sail mbodying myinvention;

Figure 2 is a fragmentary detail view of the boom and lower end of thesail on an enlarged scale;

Figure 3 is a fragmentary detail view of the gait and upper end of thesail; and

Figure i is a plan view or the boat and sail.

Referring to the drawings, numeral 2 designates a mast having a gatf 3and a boom connected thereto and supported therefrom in the usualmanner.

In carrying out my invention, 1 provide a sail made up of a number ofvertically extending strips aof canvas or other suit able material. Theouter edge 5 of each strip is the leech and the inner edge 6 the lufl.The strips are not quite as long as the corresponding distance betweenthe boom and gaff, or between the boom and mast, and each strip issecured at its opposite ends to the boom and gait, or to the boom andmast, by means capable of adjustment. As shown, each strip has each ofits opposite ends secured to the boom or gait, or to the boom or mast,by a pair of turnbuckle devices 7 located opposite the longitudinaledges of the strip. By adjusting these turnbuckle devices, it ispossible to tighten one edge of each strip and loosen the other edgethereof, so as to tip out the wind between the strips. The wind,therefore, after exerting its force upon a strip, passes from lufi' toleech and out behind the succeeding strip.

Each strip may, ii desired, be fastened to the next succeeding strip byconnecting the adjacent edges of the strips at various points bytlexible means 8, or the like, and the strips may be fastened to eachother in this manner in pairs, triplets, or otherwise. The strips may,of course, be fastened to the boom and gait, or to the boom and mast, byother adjustable means than the turnbuckle devices shown and, obviously,only one end oi each strip need be adjustably secured. By making thesail in sections, with provision for tightening one of the longitudinaledges of each strip and loosening the other edge thereof so as to tipout the dead wind, I am enabled to secure a more effective action of thewind on the sail than where the sail is made in one piece. Furthermore,making the sail in sections enables the sail to be readily shortened bydropping the gait" and removing the outer sections.

1 claim:

1. A sail composed of a number of vertically extending strips placedside by side, and means for connecting the opposite ends of each stripto a boom or a gatt enabling one longitudinal edge thereof to betightened and the other to be loosened, substantially as described.

2. A sail composed of a number of vertically extending strips placedside by side so as not to overlap, and means for connecting the oppositeends of each strip to a boom and a gaif enabling one longitudinal edgethereof to be tightened and the other to be loosened, substantially asdescribed.

3. A sail composed of a number of vertically extending strips placedside by side, and a pair of turnbuckle devices for connecting at leastone end of each strip to a boom or a gatl, said devices being locatedopposite the longitudinal edges of each strip, whereby to enable onelongitudinal edge of each strip to be tightened and the otherlongitudinal edge thereof to be loosened, substantially as described.

t. A sail composed of a. number of vertically extending strips placedside by side, means for connecting the opposite ends of each strip to aboom and a gaff enabling one longitudinal edge thereof to be tightenedand the other to be loosened, and means for connecting adjacentlongitudinal edges of certiiin of the strips et certain points,substantially as described.

A sail composed of a number of? ver- 5 tically extending strips placedside by side,

and means for connecting the opposite ends of certain of the strips tosupports enabling one longitudinal edge of each of such strips to betightened and. the other loosened, substantially as described. 10 Intestimony Whereo'l I have hereunto set my band.

FREDERICK A. SCAMMELL.

